substantia nigra

substantia nigra

Definition of SUBSTANTIA NIGRA

: a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease

substantia nigra

Medical Definition of SUBSTANTIA NIGRA

: a layer of deeply pigmented gray matter situated in the midbrain and containing the cell bodies of a tract of dopamine-producing nerve cells whose secretion tends to be deficient in Parkinson's disease